Have an account?
Skip to Content
Build your own quiz
15 questions
Show Answers
See Preview
- 1. Multiple ChoiceWhat is the primary role of enzymes inside of living cells?organizing the translation of proteinsallowing cells to be motileabsorbing ultraviolet raysspeeding up chemical reactions
- 2. Multiple ChoiceBased on their role in the cell, enzymes can also be classified as –inhibitorscatalystshormonesvitamins
- 3. Multiple ChoiceEnzymes are a form of which biomolecule?carbohydratesproteinsnucleic acidslipids
- 4. Multiple ChoiceEnzymes are composed of which of the following monomers?amino acidsacyl groupsnucleotidesmonosaccharides
- 5. Multiple Choice
The enzyme catalase speeds up the chemical reaction that changes hydrogen peroxide into oxygen and water. The amount of oxygen given off is an indication of the rate of the reaction. Based on the graph, what can you conclude?Reaction rate decreases with increasing enzyme concentration.Reaction rate increases with decreasing enzyme concentration.Reaction rate increases with increasing enzyme concentration.The variables are indirectly proportional. - 6. Multiple ChoiceWhich of the factors does NOT affect enzymatic activity?TemperaturepHConcentrationColor
- 7. Multiple Choice
What is the substrate in this enzyme substrate reaction?
hydrogen (H2)
hydrogen peroxide (H2O2)
water (H2O)
catalase
oxygen (O2)
- 8. Multiple Choice
The independent variable is what is altered in an experiment. What is the independent variable we are tested?
different enzyme concentrations
change the temperature
different concentrations of hydrogen peroxide
changing the temperature
- 9. Multiple Choice
What is the name of the enzyme that speeds up the reaction in this lab
catalase
catalyst
potato
hydrogen peroxide (H2O2)
- 10. Multiple ChoiceWhat was the substrate in our enzyme lab?Hydrogen peroxideCatalaseYeastOxygen gas
- 11. Multiple Choice
As your mixture turned colors...
The reaction progressed with the digestion of H2O2
The reaction progressed with the synthesis of H2O2
The catalase concentration increased
The catalase concentration decreased
- 12. Multiple Choice
If we changed the independent variable to temperature to study the affect it has on enzyme activity... which of the following components would we replace?
H2O2
Concentrations of catalase
Guaiacol
Buffers
- 13. Multiple Choice
Why did you use guaiacol?
It was the enzyme that directed the chemical reaction.
It reacted with a product of the reaction to show the reaction taking place.
It was the substrate of the reaction being broken down.
It was used to neutralize free radicals to prevent the destruction of the enzyme.
- 14. Multiple Choice
How did you measure the enzyme reaction taking place?
The mixture changed color as the reaction took place.
There was a temperature change as the reaction took place.
Bubbles were produced as a result of H2O2 being broken down into water and oxygen.
The pH of the mixture changed as the reaction took place.
- 15. Multiple Choice
Why was there a Cup1 and Cup2?
To keep the Guaiacol from reacting with the substrate until you were ready to record.
To keep the substrate separate from the enzyme until you were ready to record.
To keep the enzyme separate from the guaiacol until you were ready to record.
To keep all of the reactants of the reaction from being contaminated prior to the start of the reaction.
- Answer choicesTagsAnswer choicesTags